From: Johannes Berg <johannes.b...@intel.com>
Decode the HE TB PPDU data that we get in sniffer mode
and use it to populate the HE radiotap information.
Signed-off-by: Johannes Berg <johannes.b...@intel.com>
Signed-off-by: Luca Coelho <luciano.coe...@intel.com>
---
.../net/wireless/intel/iwlwifi/fw/api/rx.h | 21 ++++++----
drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c | 38 ++++++++++---------
2 files changed, 34 insertions(+), 25 deletions(-)
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/api/rx.h
b/drivers/net/wireless/intel/iwlwifi/fw/api/rx.h
index e966679a964e..2078ef425f8c 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/api/rx.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/api/rx.h
@@ -362,22 +362,27 @@ enum iwl_rx_he_phy {
/* 6 bits reserved */
IWL_RX_HE_PHY_DELIM_EOF = BIT(31),
- /* second dword - MU data */
- IWL_RX_HE_PHY_SIGB_COMPRESSION = BIT_ULL(32 + 0),
- IWL_RX_HE_PHY_SIBG_SYM_OR_USER_NUM_MASK = 0x1e00000000ULL,
+ /* second dword - common data */
IWL_RX_HE_PHY_HE_LTF_NUM_MASK = 0xe000000000ULL,
IWL_RX_HE_PHY_RU_ALLOC_SEC80 = BIT_ULL(32 + 8),
/* trigger encoded */
IWL_RX_HE_PHY_RU_ALLOC_MASK = 0xfe0000000000ULL,
- IWL_RX_HE_PHY_SIGB_MCS_MASK = 0xf000000000000ULL,
- /* 1 bit reserved */
- IWL_RX_HE_PHY_SIGB_DCM = BIT_ULL(32 + 21),
- IWL_RX_HE_PHY_PREAMBLE_PUNC_TYPE_MASK = 0xc0000000000000ULL,
- /* 4 bits reserved */
IWL_RX_HE_PHY_INFO_TYPE_MASK = 0xf000000000000000ULL,
IWL_RX_HE_PHY_INFO_TYPE_SU = 0x0,
IWL_RX_HE_PHY_INFO_TYPE_MU = 0x1,
IWL_RX_HE_PHY_INFO_TYPE_MU_EXT_INFO = 0x2,
+ IWL_RX_HE_PHY_INFO_TYPE_TB_EXT_INFO = 0x3,
+
+ /* second dword - MU data */
+ IWL_RX_HE_PHY_MU_SIGB_COMPRESSION = BIT_ULL(32 + 0),
+ IWL_RX_HE_PHY_MU_SIBG_SYM_OR_USER_NUM_MASK = 0x1e00000000ULL,
+ IWL_RX_HE_PHY_MU_SIGB_MCS_MASK = 0xf000000000000ULL,
+ IWL_RX_HE_PHY_MU_SIGB_DCM = BIT_ULL(32 + 21),
+ IWL_RX_HE_PHY_MU_PREAMBLE_PUNC_TYPE_MASK = 0xc0000000000000ULL,
+
+ /* second dword - TB data */
+ IWL_RX_HE_PHY_TB_PILOT_TYPE = BIT_ULL(32 + 0),
+ IWL_RX_HE_PHY_TB_LOW_SS_MASK = 0xe00000000ULL
};
enum iwl_rx_he_sigb_common0 {
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
index 2eae657b16b6..f415c72394ee 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
@@ -988,23 +988,23 @@ static void iwl_mvm_rx_he(struct iwl_mvm *mvm, struct
sk_buff *skb,
}
} else if (overload && he_mu && he_phy_data != HE_PHY_DATA_INVAL) {
he_mu->flags1 |=
-
le16_encode_bits(FIELD_GET(IWL_RX_HE_PHY_SIBG_SYM_OR_USER_NUM_MASK,
- he_phy_data),
+
le16_encode_bits(FIELD_GET(IWL_RX_HE_PHY_MU_SIBG_SYM_OR_USER_NUM_MASK,
+ he_phy_data),
IEEE80211_RADIOTAP_HE_MU_FLAGS2_SIG_B_SYMS_USERS);
he_mu->flags1 |=
- le16_encode_bits(FIELD_GET(IWL_RX_HE_PHY_SIGB_DCM,
- he_phy_data),
+ le16_encode_bits(FIELD_GET(IWL_RX_HE_PHY_MU_SIGB_DCM,
+ he_phy_data),
IEEE80211_RADIOTAP_HE_MU_FLAGS1_SIG_B_DCM);
he_mu->flags1 |=
- le16_encode_bits(FIELD_GET(IWL_RX_HE_PHY_SIGB_MCS_MASK,
- he_phy_data),
+
le16_encode_bits(FIELD_GET(IWL_RX_HE_PHY_MU_SIGB_MCS_MASK,
+ he_phy_data),
IEEE80211_RADIOTAP_HE_MU_FLAGS1_SIG_B_MCS);
he_mu->flags2 |=
-
le16_encode_bits(FIELD_GET(IWL_RX_HE_PHY_SIGB_COMPRESSION,
- he_phy_data),
+
le16_encode_bits(FIELD_GET(IWL_RX_HE_PHY_MU_SIGB_COMPRESSION,
+ he_phy_data),
IEEE80211_RADIOTAP_HE_MU_FLAGS2_SIG_B_COMP);
he_mu->flags2 |=
-
le16_encode_bits(FIELD_GET(IWL_RX_HE_PHY_PREAMBLE_PUNC_TYPE_MASK,
+
le16_encode_bits(FIELD_GET(IWL_RX_HE_PHY_MU_PREAMBLE_PUNC_TYPE_MASK,
he_phy_data),
IEEE80211_RADIOTAP_HE_MU_FLAGS2_PUNC_FROM_SIG_A_BW);
@@ -1049,15 +1049,18 @@ static void iwl_mvm_rx_he(struct iwl_mvm *mvm, struct
sk_buff *skb,
rx_status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_106;
}
- if (he_mu) {
+ if (he_phy_data != HE_PHY_DATA_INVAL &&
+ (FIELD_GET(IWL_RX_HE_PHY_INFO_TYPE_MASK, he_phy_data) ==
+ IWL_RX_HE_PHY_INFO_TYPE_MU_EXT_INFO ||
+ FIELD_GET(IWL_RX_HE_PHY_INFO_TYPE_MASK, he_phy_data) ==
+ IWL_RX_HE_PHY_INFO_TYPE_TB_EXT_INFO)) {
/*
* Unfortunately, we have to leave the mac80211 data
* incorrect for the case that we receive an HE-MU
- * transmission and *don't* have the he_mu pointer,
- * i.e. we don't have the phy data (due to the bits
- * being used for TSF). This shouldn't happen though
- * as management frames where we need the TSF/timers
- * are not be transmitted in HE-MU, I think.
+ * transmission and *don't* have the HE phy data (due
+ * to the bits being used for TSF). This shouldn't
+ * happen though as management frames where we need
+ * the TSF/timers are not be transmitted in HE-MU.
*/
u8 ru = FIELD_GET(IWL_RX_HE_PHY_RU_ALLOC_MASK, he_phy_data);
u8 offs = 0;
@@ -1100,10 +1103,11 @@ static void iwl_mvm_rx_he(struct iwl_mvm *mvm, struct
sk_buff *skb,
IEEE80211_RADIOTAP_HE_DATA2_RU_OFFSET);
he->data2 |=
cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA2_PRISEC_80_KNOWN);
- if (he_phy_data & IWL_RX_HE_PHY_RU_ALLOC_SEC80) {
+ if (he_phy_data & IWL_RX_HE_PHY_RU_ALLOC_SEC80)
he->data2 |=
cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA2_PRISEC_80_SEC);
+ if (he_mu) {
#define CHECK_BW(bw) \
BUILD_BUG_ON(IEEE80211_RADIOTAP_HE_MU_FLAGS2_BW_FROM_SIG_A_BW_ ## bw ##
MHZ != \
RATE_MCS_CHAN_WIDTH_##bw >> RATE_MCS_CHAN_WIDTH_POS)
@@ -1111,7 +1115,7 @@ static void iwl_mvm_rx_he(struct iwl_mvm *mvm, struct
sk_buff *skb,
CHECK_BW(40);
CHECK_BW(80);
CHECK_BW(160);
- he_mu->flags2 |=
+ he->data2 |=
le16_encode_bits(FIELD_GET(RATE_MCS_CHAN_WIDTH_MSK,
rate_n_flags),
IEEE80211_RADIOTAP_HE_MU_FLAGS2_BW_FROM_SIG_A_BW);
--
2.18.0
